Question

50 ml of each gas a and of gas b takes 150 and 200 seconds respectively for refusing through a pin hole under the similar conditions if molecular mass of gas b is 36 the molecular mass of gas a will be

Answer 1

150...is..36

200...is..?

200/150*36

20/15*36

4/3*36

4*12

=48

mass of the gas awill be 48